Nut-lock.



I NUT L0 APPLICATION FILED MAX 3, 19-10.

, A #El/ Mm \uuuuu l um. E j

UNliTED STAT FAENT @FFMJ WARREN LU VERN LOOP, OF ELDRED, PENNSYLVANIA,ASSIGNOB OF ONE-THIRD TO ANDREW LONG AND ONE-THIBD TO ORVEL BELL, 0FELDRED, PENNSYLVANIA.

nor-nook.

To all whom it may concern:

Be it known that I, VVARREN LU VERN LOOP, a citizen of the UnitedStates, residing at Eldred, in the county of McKean and State ofPennsylvania, have invented a new and useful Improvement in Nut-Locks,of

whieh the following is a specification.

This invention relates to certain new and useful improvements in nutlocks especially adapted to be used on bolts for fastening rail joints,the objectbeing to provide a nut lock which is so constructed that thenut will be securely locked without any danger of the same workingloose.

Another object of my invention is to provide a nut lock in which thelocking pin is so mounted within the bolt that the same will be forcedtightly against the outer face of the nut so as to prevent the same fromturning.

A. still further object of my invention is to provide means for lockingthe pin into engagement with the nut, so that all danger of the sameworking loose is prevented.

With these objects in view the invention consists in the novel. featuresof construction, combination and arrangement of parts, hereinafter fullydescribed and pointed out in the claims.

In the drawing forming a part of this specification: Figure 1 is atransverse section through a rail joint showing the application of myimproved nut lock. Fig. 2 is a horizontal section through the same. Fig.3 is a side elevation. Fig. 4 is a perspective view of the locking pin.

In carrying out my improved invention, I employ a bolt A having itsthreaded end bifurcated, and provided with a transverse rivet B, onwhich is pivotally and slidably mounted a locking pin C which fits inthe bifurcation of the bolt, and is provided with an oblique slot G, anda series of perforations D, along one edge for the purpose hereinafterfully described.

Mounted on the bolt is a nut E having its outer face grooved as shown atE, in which the edge of the locking pin C is adapted to fit, after thenut has been screwed tightly against the member to be secured and itwill be seen by giving the pin a slight tap with Specification ofLetters Patent.

Application filed May 3, 1910.

Patented June 20, 1911.

Serial No. 559,141.

the hammer, the oblique slot will force the same into the groove in sucha manner that it will be impossible for the nut to turn in any way.

For preventing the pin from working out of the grooves of the nut, Iinsert a staple or key F in one of the openings of the pin adjacent thebolt, and it will be seen by this construction it will be impossible forthe pin to be detached until the key has been removed. By providing theface of the nut with radial grooves to receive the edge of the flat pin,the nut can be locked in several positions, so that the same will beheld tightly against the member to be secured. When it is desired toremove the nut from the bolt, the key is removed and by swinging the pinlongitudinally of the bolt, the nut can be readily slipped off or on,and it will be seen that by providing the pin with an obliquely arrangedslot, the edge will be forced into engagement with the nut when Eliesame is in a different position on the olt.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is 1. The combination with a bolt having abifurcated end, of a locking pin pivotally and slidably mounted in thebifurcation of said bolt, and a nut having a grooved outer face adaptedto receive the edge of said pin.

2. The combination with a bolt having a bifurcated end, of a nut workingon said bolt provided with radial grooves in its outer face, a pinpivotally and slidably mounted in the bifurcation of said bolt providedwith a series of openings, and a key adapted to fit in one of saidopenings for locking said pin in the grooves of said nut.

3. The combination with a bolt having a bifurcated end, of a nut workingon said bolt provided with a grooved outer face, a pin extendingtransversely through the end of said bolt, a locking pin having anoblique slot mounted on said pin in said bifurcation adapted to fitwithin the groove of the nut, and means for locking said pin inengagement with said nut.

4. A nut lock comprising a threaded bolt having a bifurcated end, arivet extending transversely through said bolt adjacent its openings forlooking the edge of said pin in end, a nut Working on said bolt providedone of the grooves of said nut.

With radial grooves in its outer face, a flat pin provided With anoblique slot mounted WVARLEN LU VERN LOOP on said rivet Within saidbifurcation, said Vitnesses:

pin being provided with a series of openings, F. F. Loor.

and a key adapted to fit Within one of said GEO. E. SMITH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

